1311222234011 has 2 divisors, whose sum is σ = 1311222234012. Its totient is φ = 1311222234010.

The previous prime is 1311222234001. The next prime is 1311222234029. The reversal of 1311222234011 is 1104322221131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311222234011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311222234001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655611117005 + 655611117006.

It is an arithmetic number, because the mean of its divisors is an integer number (655611117006).

Almost surely, 2^{1311222234011} is an apocalyptic number.

1311222234011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311222234011 is an equidigital number, since it uses as much as digits as its factorization.

1311222234011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1311222234011 its reverse (1104322221131), we get a palindrome (2415544455142).

The spelling of 1311222234011 in words is "one trillion, three hundred eleven billion, two hundred twenty-two million, two hundred thirty-four thousand, eleven".